#03071B#03071B

#03071B is a very dark, muted blue. Relative luminance 0.003; OKLCH L 13.8% C 0.045 H 267.5°. Best body text is #FFFFFF at 20.00:1 contrast (WCAG AA passes).

Color values

HEX	#03071B
RGB	rgb(3, 7, 27)
HSL	hsl(230, 80%, 6%)
HSV	hsv(230, 89%, 11%)
CMYK	cmyk(88.9%, 74.1%, 0%, 89.4%)
CIE-LAB	lab(2.26, 3.00, -11.33)
CIE-LCH	lch(2.26, 11.73, 284.84°)
OKLab	oklab(13.81% -0.002 -0.045)
OKLCH	oklch(13.81% 0.045 267.5)
XYZ	xyz(0.3113, 0.2504, 1.0686)
Luminance	0.0025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03071B #1B1703

analogous

#03131B #03071B #0B031B

triadic

#03071B #1B0307 #071B03

tetradic

#03071B #1B0313 #1B1703 #031B0B

square

#03071B #1B0313 #1B1703 #031B0B

split-complementary

#03071B #1B0B03 #131B03

monochromatic

#03071C #03071C #03071C #091552 #0F2489

Accessibility & contrast

On white

20.00

#03071B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#03071B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03071B

20.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03071B	#FFFFFF	#000000	##FFFFFF
##03071B	1.00	20.00	1.05	20.00
#FFFFFF	20.00	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	20.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00091C

Deuteranopia (green-blind)

#00071B

Tritanopia (blue-blind)

#000C0F

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #03071b;
/* rgb */ color: rgb(3, 7, 27);
/* oklch */ color: oklch(13.8% 0.045 267.5);

Tailwind

colors: {
  custom: {
    50: '#474a57',
    500: '#03071b',
    950: '#000000',
  },
}

SCSS

$custom: #03071b;
$custom-light: #474a57;
$custom-dark: #000000;

JSON

{
  "hex": "#03071b",
  "rgb": {
    "r": 3,
    "g": 7,
    "b": 27
  },
  "hsl": {
    "h": 230,
    "s": 80,
    "l": 5.882
  },
  "oklch": {
    "l": 0.13813,
    "c": 0.04507,
    "h": 267.5
  },
  "luminance": 0.0025
}

Semantic roles & 50–950 ramp

primary

#03071B

secondary

#5F541B

accent

#D631F6

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #03071B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →